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Table 3 Correlations between SMG variables, EMG variables and torque of TA for each isometric foot dorsiflexion intensity

From: Tibialis anterior analysis from functional and architectural perspective during isometric foot dorsiflexion: a cross-sectional study of repeated measures

  TH 100 TH 75 TH 50 TH 25 PA 100 PA 75 PA 50 PA 25 EMG 100 EMG 75 EMG 50 EMG 25 Area 100 Area 75 Area 50 Area 25 Torque 100 Torque 75 Torque 50 Torque 25
TH 100 1                    
TH 75 0.805† 1                   
TH 50 0.886† 0.886† 1                  
TH25 0.955† 0.882† 0.903† 1                 
PA 100 0.687† 0.770† 0.743† 0.804† 1                
PA 75 0.560† 0.693† 0.593† 0.649† 0.712† 1               
PA 50 0.754† 0.779† 0.812† 0.816† 0.827† 0.839† 1              
PA 25 0.767† 0.744† 0.718† 0.849† 0.895† 0.750† 0.895† 1             
EMGMP 100 0.650† 0.871† 0.776† 0.725† 0.634† 0.625† 0.765† 0.643† 1            
EMGMP 75 0.131 0.299 0.204 0.164 0.296 0.402* 0.353 0.326 0.421* 1           
EMGMP 50 0.678† 0.698† 0.624† 0.687† 0.515† 0.545† 0.588† 0.615† 0.748† 0.552† 1          
EMGMP 25 0.556† 0.483* 0.439* 0.591† 0.584† 0.617† 0.577† 0.659† 0.446* 0.583† 0.693† 1         
EMGAUC 100 0.586† 0.495† 0.548† 0.556† 0.426* 0.488† 0.590† 0.519† 0.593† 0.500† 0.767† 0.697† 1        
EMGAUC 75 0.084 0.224 0.127 0.064 0.185 0.321 0.280 0.231 0.377 0.834† 0.505† 0.548† 0.579† 1       
EMGAUC 50 0.544† 0.447* 0.379 0.525† 0.379 0.391* 0.379 0.464* 0.448* 0.416* 0.762† 0.628† 0.634† 0.410* 1      
EMGAUC 25 0.500† 0.358 0.315 0.436* 0.398* 0.429* 0.441* 0.569† 0.326 0.571† 0.651† 0.760† 0.682† 0.686† 0.674† 1     
Torque 100 0.451* 0.500† 0.381 0.495† 0.398* 0.596† 0.587† 0.570† 0.468* 0.300 0.469* 0.608† 0.501† 0.392* 0.460* 0.544† 1    
Torque 75 0.188 0.282 0.175 0.217 0.268 0.441* 0.393* 0.388* 0.361 0.771† 0.481* 0.490† 0.424* 0.705† 0.407* 0.627† 0.474* 1   
Torque 50 0.426* 0.476* 0.353 0.407* 0.288 0.354 0.372 0.423* 0.467* 0.456* 0.689† 0.456* 0.532† 0.508† 0.638† 0.679† 0.701† 0.648† 1  
Torque 25 0.536† 0.490† 0.368 0.562† 0.479* 0.491† 0.483* 0.582† 0.408* 0.505† 0.657† 0.779† 0.589† 0.530† 0.618† 0.792† 0.555† 0.588† 0.596† 1
  1. * Correlation is significant at the 0.05 level
  2. † Correlation is significant at the 0.01 level
  3. *EMG: electromyography. DF: dorsiflexion. TH: thickness. PA: pennation angle; MP Maximum peak; AUC: Area under the curve